Part A
AD7606BBSTZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6359 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AD7606BBSTZ and AD7607BSTZ are both 8-channel, 16-bit bipolar simultaneous-sampling SAR ADCs in a 64-lead LQFP package with an identical pinout and parallel/serial interface, making them strong functional replacement candidates. The primary distinction is resolution-related dynamic performance and per-channel throughput rather than form factor or interface, so the AD7607BSTZ can generally serve as a drop-in substitute where its 14-bit-class performance and timing are acceptable, while the AD7606BBSTZ offers higher resolution and faster throughput for more demanding acquisition requirements.
Channel Count
High match
Package and Pinout
High match
Digital Interface
High match
Resolution and Throughput
Validation required
Parts at a glance
Part B
AD7607BSTZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2040 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD7606BBSTZ | AD7607BSTZ | Why it matters |
|---|---|---|---|
| Number of ADC Channels | 8 | 8 | Channel count determines how many analog inputs can be sampled simultaneously; both are 8-channel devices. |
| Resolution | 16 bits | 14 bits | Higher resolution provides finer measurement granularity and lower quantization error; the AD7606B offers 16-bit versus 14-bit on the AD7607. |
| Maximum Throughput (per channel) | 800 kSPS | 200 kSPS | Throughput sets the maximum sampling rate; the AD7606B samples significantly faster, affecting suitability for higher-bandwidth signals. |
| Input Voltage Range | ±10 V, ±5 V | ±10 V, ±5 V | Bipolar input ranges determine compatibility with industrial signal levels; both support the same standard ranges. |
| Supply Voltage (Analog) | 5 V | 5 V | Analog supply voltage affects signal swing and must match the system power rail; both use a 5 V analog supply. |
| Digital Interface Supply (VDRIVE) | 2.3 V to 5.25 V | 2.3 V to 5.25 V | VDRIVE sets logic-level compatibility with the host processor; both support a wide 2.3 V to 5.25 V range. |
| Package | 64-Lead LQFP | 64-Lead LQFP | Package and footprint determine PCB layout compatibility; both use the same 64-lead LQFP. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range affects suitability for industrial environments; both are rated for the same industrial range. |
| Integrated Analog Front End (AFE) | Yes (input clamps, PGA, anti-alias filter) | Yes (input clamps, PGA, anti-alias filter) | An integrated AFE reduces external component count and simplifies design; both include comparable front-end circuitry. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7606BBSTZ | AD7607BSTZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Data Acquisition System (DAS), ADC | Data Acquisition System (DAS), ADC |
| Number of Channels | 8 | 8 |
| Resolution(Bits) | 16 b | 14 b |
| Sampling Rate(Per Second) | 800k | 200k |
| Data Interface | Parallel, Serial | SPI, DSP |
| Voltage Supply Source | Analog and Digital | Analog and Digital |
| Voltage - Supply | 1.71V ~ 4.75V, 3.6V ~ 5.25V | 2.3V ~ 5.25V, 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD7606BBSTZ and the AD7607BSTZ?
The AD7606BBSTZ is an 8-channel, 16-bit bipolar simultaneous-sampling ADC, while the AD7607BSTZ is an 8-channel, 14-bit bipolar simultaneous-sampling ADC. Both are members of the AD7606 family and share the same 64-lead LQFP package and pinout, but they differ in resolution (16-bit vs 14-bit) and therefore in related performance parameters such as SNR and INL.
Are the AD7606BBSTZ and AD7607BSTZ pin-compatible and package-compatible?
Yes. Both devices are offered in the same 64-lead LQFP package (STZ suffix) and share the same pinout, which allows a common PCB footprint. However, pin compatibility does not guarantee functional equivalence; the resolution and performance specifications differ, so firmware and system-level validation are still required.
What is the resolution and SNR difference between the AD7606BBSTZ and AD7607BSTZ?
The AD7606BBSTZ provides 16-bit resolution with a typical SNR of approximately 90 dB, while the AD7607BSTZ provides 14-bit resolution with a typical SNR of approximately 85 dB. The higher resolution of the AD7606BBSTZ supports finer measurement granularity and better dynamic range.
Do both parts support the same analog input ranges and simultaneous sampling?
Yes. Both the AD7606BBSTZ and AD7607BSTZ provide eight simultaneously sampled analog input channels with selectable bipolar input ranges of ±10 V and ±5 V, and both include an on-chip input clamp, track-and-hold amplifiers, and an internal reference option. The simultaneous-sampling architecture is common to both devices.
What is the maximum throughput rate of the AD7606BBSTZ and AD7607BSTZ?
Both devices support a maximum throughput of 200 kSPS per channel when all eight channels are sampled simultaneously. The conversion timing and digital interface (parallel or serial) are common across the family, so throughput is not a differentiator between the two parts.
Can the AD7607BSTZ be used as a drop-in replacement for the AD7606BBSTZ in an existing design?
Because both parts share the same package and pinout, the AD7607BSTZ can be placed on the same footprint. However, it is not a functional drop-in replacement: the 14-bit resolution reduces measurement precision and changes the digital output coding and SNR performance. The design must be re-validated against the system's accuracy requirements before substitution.
Do the AD7606BBSTZ and AD7607BSTZ share the same digital interface and supply requirements?
Yes. Both devices provide a flexible parallel or serial digital interface and operate from a single 5 V analog supply with a separate 2.3 V to 5.25 V digital supply (VDRIVE). The interface timing and supply architecture are common to the AD7606 family, so the digital host interface design can be reused between the two parts.